Error Message “Xcode alone is not sufficient on Sierra”

Question

I\'d like to install openCV to vectorize image, but there\'s a series error message regarding Xcode and Ruby.

First, I use terminal to install openCV, brew install

Answer 1

Trying to install k8s package via brew , I just got the same issue a while ago saying in the terminal :

Error: Xcode alone is not sufficient on Sierra.

Install the Command

Line Tools: xcode-select --install

You need to download *.dmg file; named Command Line Tools (macOS x.x.x) for XCode N . Search on it here : https://developer.apple.com/download/more/ . You must have developer account.

Then, congrats!